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Enlighten API 4.03 Documentation
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  • class Enlighten QuadIterator
  • class Enlighten QuadShader
  • class Enlighten QuickFlatClusterShader
  • class Enlighten QuickQuadShader
  • class Enlighten R9G9B9E5CpuTextureSampler
  • class Enlighten R11G11B10CpuTextureSampler
  • class Enlighten RadCubeMapCore
  • class Enlighten RadCubeMapMetaData
  • class Enlighten RadCubeMapTask
  • class Enlighten RadDataBlock
  • class Enlighten RadDebugBucketSelectionTask
  • class Enlighten RadDebugColouringTask
  • class Enlighten RadDebugPixelInfo
  • class Enlighten RadiosityInputTree
  • class Enlighten RadIrradianceTask
  • class Enlighten RadProbeSetCore
  • class Enlighten RadProbeSetMetaData
  • class Enlighten RadProbeTask
  • class Enlighten RadSystemCore
  • class Enlighten RadSystemMetaData
  • class Enlighten RawBuffer
  • class Enlighten ReadInputLightingBufferInfo
  • class Enlighten RectangleLight
  • class Enlighten RefTextureAllocator
  • class Enlighten RefTextureUpdater
  • class Enlighten ReleaseSystemSolutionSpacesInfo
  • class Enlighten RemoveInfo
  • class Enlighten ResampleBounceParameters
  • class Enlighten ResampleTextureParameters
  • class Enlighten Rgba64Linear
  • class Enlighten RgbaCpuTextureSampler
  • class Enlighten RgbmCpuTextureSampler
  • class Enlighten SetLightBankUpdateCounterInfo
  • class Enlighten SetParameterCommand
  • class Enlighten SetProbeSetTransformInfo
  • class Enlighten SetTransparencySamplePositionOffsetInfo
  • class Enlighten SetVisibilityBitsInfo
  • class Enlighten SolveBounceTask
  • class Enlighten SortedLights
  • class Enlighten SphereVolume
  • class Enlighten Spotlight
    • struct Enlighten Spotlight CachedData
  • class Enlighten SystemAlbedoData
  • class Enlighten SystemDependencies
  • class Enlighten SystemGrouping
  • class Enlighten TaskProcessor
  • class Enlighten TransparencyWorkspace
  • class Enlighten Triangle2D
  • class Enlighten TriggerVolumeTransparencyGeneric
  • class Enlighten UpdateEnvironmentInfo
  • class Enlighten UpdateLightCommandGeneric
  • class Enlighten UpdateLightInfo
  • class Enlighten UpdateLightOptions
  • class Enlighten UpdateManagerLight
  • class Enlighten UpdateManagerProperties
  • class Enlighten UpdateManagerWorkerProperties
  • class Enlighten Vertex2D
  • class Enlighten VisibilityBuffer
  • class Enlighten WorkerFunctionCommand
  • class Enlighten WorkerFunctionParameterCommand
  • class Enlighten WorkerFunctionTwoParametersCommand
  • class Enlighten WorkerFunctorCommand
  • class Enlighten WorkerObjectFunctionCommand
  • class Enlighten WorkerThreadData
  • class Enlighten WorkspaceAllocator
  • namespace Enlighten Errors
  • namespace Enlighten Helpers
  • namespace Enlighten Iff
  • namespace Enlighten InputLightingValidation
  • namespace Enlighten Itt
  • namespace Enlighten OutputTextureState
  • namespace Enlighten UE4
  • namespace Enlighten Version
  • struct Enlighten AllFilter
  • struct Enlighten BakeInputTexture
  • struct Enlighten CachedLightSelector
  • struct Enlighten CachedLightWriter
  • struct Enlighten CanQuickShade
  • struct Enlighten CanQuickShade< LIGHT_TYPE_DIRECTIONAL_LIGHT >
  • struct Enlighten CountLightSizeVisitor
  • struct Enlighten CullCluster
    Calendars
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class Enlighten Spotlight

    This is the documentation for Enlighten.

    class Enlighten Spotlight

    Sept 09, 2025

    class Enlighten::Spotlight

        └>Enlighten::InputLightBase

    Spotlight class used by extended input lighting.

    Classes

    Name Description
    Enlighten::Spotlight::CachedData

    Cached data for spotlights.

    Variables

    Name Description
    float m_ConeAngle

    The cone angle of the spot light in radians; Measures the angle swept by the entire cone.

    float m_CutOff

    The radius outside which intensity is clamped to zero; specified in Enlighten units.

    Geo::v128 m_Direction

    World space direction of spotlight.

    const InputLightFalloffTable * m_FalloffTable

    Falloff table.

    bool m_HasChanged

    Whether the light has changed since it was last given to the extended direct lighting api.

    float m_InnerConeAngle

    The inner cone angle of the spot light in radians.

    Geo::v128 m_Intensity

    RGB intensity of the light (linear space).

    const eLightType m_LightType

    Type of input light corresponding to an eLightType enum value.

    Geo::u64 m_Padding

    Unused (this class is usually extended by one that starts with multiple v128s)

    Geo::v128 m_Position

    World space position of spotlight.

    float m_Radius

    The radius inside which intensity is clamped to the given value; specified in Enlighten units.

    Functions

    Name Description
    DistanceFilter(float)

    Return true if this light affects a system at the specified distance from the viewer.

    InputLightBase(eLightType)

    Constructor.

    InputLightBase(eLightType, bool)

    Constructor.

    Spotlight()

    Constructor.


    GEO_CONTROLLED_INLINE bool Enlighten::InputLightBase::DistanceFilter

    public: GEO_CONTROLLED_INLINE bool DistanceFilter
    (
        float viewDistance
    ) const

    Return true if this light affects a system at the specified distance from the viewer.


    Enlighten::InputLightBase::InputLightBase

    protected: InputLightBase
    (
        eLightType lightType
    )

    Constructor.


    Enlighten::InputLightBase::InputLightBase

    protected: InputLightBase
    (
        eLightType lightType,
        bool hasChanged
    )

    Constructor.


    Enlighten::Spotlight::Spotlight

    public: Spotlight()

    Constructor.

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